-?1 I Fl'itSrll. Sf udics dli ( '\;iUn|ili\r(';H'. 



Fi^'. In. liasiil |M>i-tioii nl' ii tiliiniciit dl' (I locol ric/iin i/nhins ( I Icdwipr) 

 Kal>fiili.. sliowiii«;- tlio culicrent . hiit nnirUfdlv cnnst n'i'tcd ccll-slirMt li aml 

 Iho basal licterocyst (//). ( aboul KiOU). 



Fi<i'. 11. l'art of a lilanient of O-'o-ilhiria Friililicliii . slmwino' the 

 roherent ccll-slientli. Tlie coiisl rictious nrc ratlier cxajU'^criitcd. ( HöO.) 



l'i^'. VI. Pari <d' a lilaiiifiit oi" Tülijiiollirix in the liviiig. uiistained 

 condition. in \\lii(li iio cellsheatli is visihle witliiii tlie externa! slieatli (f. -v.). 

 A siiiall ])urtioii oi' tlie tilanieiit lias died away tlirouft'li iiijiiiy. leaviii^' tlic 

 ])roiiiiii('nt traiisverse septa (t.x.). The ex])(ised apircs ol' tln- lilaint'iit an- 

 eovered bv flu- iiiucli-tliii-keiied cell-sheatli. ( 1450). 



Fig. liJ. Sinall ])ortion of a blaiuent of Tobjpollnix . treated witli 

 Todine. The central iihiment lias rontracted away fVoiii tlie cxternal slieatli 

 and its eoherent , Imt moiiiliforiii cell-slieatli and tlie iniici- Investments of 

 tlie j)rotophi!sts are now qiiite visible. (;■; al)out IHUO). 



Fig. 14. Living, unstained tilanient of 7o/?/;^o///r/x'. ilhisl latini;- n'pcatc(l 

 sheath-forniation'. see text p. 42. (;• 1450.) 



Fig. 15. Portion of a filainent of Tolijpofhrix, treated witli iliiiuin«- 

 acid. The iilanient has contracted away from the external theath (c. s.): 

 the rell-slieath has been dissolved away and only tlie inner Investment 

 remains (/'. /.). Tlic protoplasmic contents have all disa])]H'ared exeept for 

 a few globnles in eacli cell. ( 1450.) 



Fig. IG. Small jjortion of a lilamcnt ol' Lijughija sali na Ktz. . showing 

 the Wide hyahiie external sheatli. the coherent cell-slieatli and the deli- 

 cate inner investments aronr.d the pnit(i])lasts. ( ' ('.Oft alidiit. 



